Wanted: Knife Switch Parts (or HUW Switch Box)

[Bruce Parker (RIP)]

Originally Posted by Rob Fast

several old posts on the subject, my HUW looks bare without it and the blackdoor switches.

Do you have the box? If not I have some pretty accurate drawings to make one up. The way it seems to work, based on the wiring diagram, is that if the knife switch is to the left, the wireless set and interior lights work off the right pair of batteries and the left pair charge if the chorehorse is running. Move the switch to the right and the left pair of batteries runs things while the right pair charges. The C5 Charging Panel under the table was only used when operating the set away from the vehicle. The 6V vehicle system and the 12V body system were independent of each other other than both being grounded to the vehicle itself.

Note also the door 'kill' switches were in series so opening any door blacked out the lights, and that there was a fourth switch in series with the rest on the sliding roof hatch.